Pith Number

pith:LDZJUM5Q

pith:2018:LDZJUM5Q2TBNVKLNZCDKAFWEML

not attested not anchored not stored refs pending

Vanishing of categorical obstructions for permutation orbifolds

Corey Jones, Terry Gannon

arxiv:1804.08343 v2 · 2018-04-23 · math.QA · math.RT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDZJUM5Q2TBNVKLNZCDKAFWEML}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:53:44.138868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58f29a33b0d4c2daa96dc886a016c462dcf671b00f076478bf8f9a5012eee2a3

Aliases

arxiv: 1804.08343 · arxiv_version: 1804.08343v2 · doi: 10.48550/arxiv.1804.08343 · pith_short_12: LDZJUM5Q2TBN · pith_short_16: LDZJUM5Q2TBNVKLN · pith_short_8: LDZJUM5Q

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/LDZJUM5Q2TBNVKLNZCDKAFWEML \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 58f29a33b0d4c2daa96dc886a016c462dcf671b00f076478bf8f9a5012eee2a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "903cd58cc4a8d4859a748c2427c0c5975aa4c32c558549b7569b6cb3dd9a8ccc",
    "cross_cats_sorted": [
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.QA",
    "submitted_at": "2018-04-23T11:24:51Z",
    "title_canon_sha256": "e157f4200ccc644db376550607e0b05e3ecc8198d19ee62db016710e72ff37bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08343",
    "kind": "arxiv",
    "version": 2
  }
}